type-coverage
Advanced tools
A CLI tool to check type coverage for typescript code
This tool will check type of all identifiers, the code coverage = the count of identifiers whose type is not any / the total count of identifiers, the higher, the better.
yarn global add type-coverage
run type-coverage
| name | type | description |
|---|---|---|
| -p, --project | string? | show where is the tsconfig.json |
| --detail | boolean? | show detail |
| --at-least | number? | fail if coverage rate < this value |
| --debug | boolean? | show debug info |
| --strict | boolean? | if the identifiers' type arguments exist and contain at least one any, like any[], ReadonlyArray<any>, Promise<any>, Foo<number, any>, it will be considered as any too; also, future minor release may introduce stricter type check in this mode, which may lower the code coverage |
| --cache | boolean? | save and reuse type check result of files that is unchanged and independent of changed files in .type-coverage directory, to improve speed |
"typeCoverage": {
"atLeast": 99 // same as --at-least
},
Use type-coverage:ignore-next-line or type-coverage:ignore-line in comment(// or /* */) to ignore any in a line.
try {
// type-coverage:ignore-next-line
} catch (error) { // type-coverage:ignore-line
}
https://marketplace.visualstudio.com/items?itemName=york-yao.vscode-type-coverage
Use your own project url:
[](https://github.com/plantain-00/type-coverage)
Q: Does this count JavaScript files?
Yes, This package calls Typescript API, Typescript can parse Javascript file(with allowJs), then this package can too.
FAQs
A CLI tool to check type coverage for typescript code
The npm package type-coverage receives a total of 44,474 weekly downloads. As such, type-coverage popularity was classified as popular.
We found that type-coverage demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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